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Carrier Ethernet demarcation is a key element in Carrier Ethernet services and transport networks for business, wholesale and mobile backhaul applications, as it enables service providers to extend their control over the entire service path, starting from the hand off points.
Carrier-sense multiple access with collision detection (CSMA/CD) is a medium access control (MAC) method used most notably in early Ethernet technology for local area networking. It uses carrier -sensing to defer transmissions until no other stations are transmitting.
His most recent works include short titles on optical networking, clustered computing, and carrier Ethernet, plus recent revisions to his CISSP Study Guide, HTML For Dummies (currently entitled HTML, XHTML, and CSS For Dummies, 6th edition, with co-author Jeff Noble), Windows Server 2008 For Dummies, and Guide to TCP/IP, 3rd edition (lead ...
A metropolitan-area Ethernet system. A metropolitan-area Ethernet, Ethernet MAN, carrier Ethernet [1] or metro Ethernet network is a metropolitan area network (MAN) that is based on Ethernet standards. It is commonly used to connect subscribers to a larger service network or for internet access.
Virtual Private LAN Service (VPLS) is a way to provide Ethernet-based multipoint to multipoint communication over IP or MPLS networks. It allows geographically dispersed sites to share an Ethernet broadcast domain by connecting sites through pseudowires. The term sites includes multiplicities of both servers and clients.
The challenge of carrier Ethernet is to add carrier-grade functionality to Ethernet equipment without losing the cost-effectiveness and simplicity that makes it attractive in the first place. To meet this challenge, common connection-oriented Ethernet solutions have chosen to rid themselves of the complex parts of packet transport to achieve ...
It is based on T-carrier (T1) transmission in the US, Canada, and Japan, while the E-carrier (E1) is common in Europe and Australia. The T1 line consists of 23 bearer (B) channels and one data (D) channel for control purposes, [ 1 ] for a total bandwidth of 24x64-kbit/s or 1.544 Mbit/s.
The increased overhead of extra MPLS and Ethernet headers means that the support for frames up to 1600 bytes is required in Carrier Ethernet networks. [ 19 ] Jumbo frames for PPPoE is defined in RFC 4638, with the purpose of removing the old 1492-byte limit (originally defined because PPP needs 8 more bytes of overhead), so that normal 1500 ...